[dev.fuzz] all: merge master (b0fa2f5) into dev.fuzz

Merge List:

+ 2021-09-20 b0fa2f5b09 cmd/compile: fix ExampleInfo output

Change-Id: Iccc726a8925082688faa94d07b829a5705f58dda

src/cmd/compile/internal/types2/example_test.go

@@ -216,6 +216,7 @@ func fib(x int) int {
 	// var x int:
 	//   defined at fib.go:8:10
 	//   used at 10:10, 12:13, 12:24, 9:5
+}
 
 // TODO(gri) Enable once positions are updated/verified
 // Types and Values of each expression:
@@ -244,7 +245,6 @@ func fib(x int) int {
 // 12:24 | x                   | var     : int
 // 12:24 | x - 2               | value   : int
 // 12:26 | 2                   | value   : int = 2
-}
 
 func mode(tv types2.TypeAndValue) string {
 	switch {